baber/WOPTO huggingface dataset:
Patent GB-759313-A (GB)
Title: Gramophone record player with pick-up arm movement to the record derived from the turntable drive
IPC: G11B3/30
Filed: 1954-07-05
Abstract: 759,313. Gramophones. KNECHT, E. July 5, 1954 [Aug. 29, 1953], No. 19657/54. Class 40(2) A gramophone disc record player in which movemnets of a pick-up arm 2 to and from the record are effected by the power source which drives the turntable not shown has the pick-up arm arranged to 'be secured in a rest position by a spring- loaded locking lever 7 which is arranged to disengage from the pick-up arm by the operation of a starting means for the turntable and which re-engages the arm by virtue of its spring loading when the arm has returned to its rest position. As shown, the lever 7, loaded by a tension spring 12 and pivoted at 8, has an end 9 which engages an opening 10 in a web 11 of the pick-up arm when in the rest position. Depression of a spring-loaded push button 18, by which through a starting lever 16 and contacts 17 the turntable driving motor (not shown) is directly or indirectly switched on, causes a pin 14 at the end of lever 16 to slide along inclined surface 13 at the end of lever 7 to release the lock. A spring-loaded catch 19 'by which the lever 16 is retained in the operating position is released by the pickup arm control (not shown) when the arm has returned to lie on a support 3 and base 4. If the record player embodies a record changing mechanism an undisclosed mechanism is provided to retain the lever 16 in the operative position until the last record has been played.
Patent GB-744935-A (GB)
Title: Method of and apparatus for the continuous production of purified iron from pig-iron
Inventor: ROCHLING HERMANN
IPC: C21C5/56
Filed: 1953-07-15
Abstract: 744,935. Refining pig iron. GES. FUR HUTTEN-UND STAHLVERFAHREN. July 15, 1953, No. 19673/53. Class 72. In a process of purifying pig-iron as it flows continuously along a substantially horizontal elongated stationary container, oxidising gases are supplied to the molten metal at a gauge pressure between 0À5 and 1À5 atmospheres through tuyeres directed downwardly and obliquely through the container walls, terminating in or just above the molten metal, and spaced along the container, the pressure or quantity of the gases being regulated for the tuyeres altogether, individually or in groups so that different reaction zones may be set up along the container. As shown in Fig. 1 pig iron enters the container 1 at 1a and purified iron leaves at 1b, slag being withdrawn at 1c. Scrap iron may be added at 5 and lime or blastfurnace slag at 6, these additions being preheated by waste gases from the container 1. Tuyeres 2 extend obliquely through the container wall. The purified iron may have deoxidants or other additives supplied at 3a in the flow-through container 3, and coal may be supplied under pressure through the aperture 3b. Fig. 2 shows a preliminary syphon device 4 through which the pig iron may be made to flow before it enters the container, entering at 4a and leaving at 4b. The pig-iron is broken into droplets by the curved surface 4d, and the silicon in the pig-iron helps to reduce any iron in the slag which is supplied at 4f (from the slag outlet 1c of the container 1) and leaves at 4g. Fig. 4 shows an arrangement of the container 1 in which the tuyeres are arranged in 2 groups 2a and 2b set at such angles to the direction of flow that eddies of molten metal are set up, which aid in efficient mixing and purification.
Patent GB-453797-A (GB)
Title: Improvements in brake-operating mechanism for aircraft
IPC: B64C25/48
Filed: 1935-07-10
Abstract: 453,797. Aircraft wheel brakes. BENDIX, Ltd., and HALL, P. E., King's Road, Tyseley, Birmingham. July 10, 1935, No. 19681. [Class 4] [See also Group XXIV] Aircraft brake-operating mechanism of the type in which the brakes can be applied equally from a hand control or differentially from the rudder bar and in which the arrangement is such that the brakes are only brought into operative connection with the rudder bar by a preliminary movement of the hand control, comprises a hand controlled cable 4, Figs. 1 and 2, coupled to one end of a lever 8 pivotally carried at 9 in skeleton framework or cage 1 fixed to the machine, coaxial pulleys 14, 15 mounted intermediate of the length of lever 9, and wheel brake cables 6, 7, carried in opposite directions around pulleys 14, 15 respectively and secured to points in opposite sides of a centrally-pivoted rocking bar coupled by rods or cables to the rudder bar in such manner as to move angularly therewith. Cage 1 may be formed of two similar sheet metal pressings or light metal or alloy die castings which are secured together by spacing members, Fig. 2, forming pivots for levers 8 and 17 and abutments for flexible casings of cables 4, 6 and 7. Lever 18 is provided with a number of spaced apertures 19 to any one of which a rod or cable from the rudder bar can be attached according to the leverage required. Brake cables 6, 7 are anchored at points 20, 21 respectively which are so disposed that angular movement of bar 18 causes the increase in tension in one cable to be less than the decrease in tension in the other. The device shown in Fig. 1 may be reduced in size by arranging the abutment of cable 4 closer to the pivot of lever 8 and by using a correspondingly shorter lever. The hand control may take the form shown in Fig. 4, which comprises a hollow plunger 23 slidable in a fixed casing 24 and having at one end a handle 27. Cable 4 is carried over a pulley 25 at the inner end of casing 24 and is anchored at 26 to the plunger. A spring-pressed pawl 28 mounted on casing 24 projects through an aperture therein and engages with any one of a series of ratchet teeth 29 in the upper face of the plunger, thus locking the plunger in any adjusted position. Unlocking is effected by rotation of handle 27 to bring the ratchet teeth out of alignment with the pawl. Co-operating cam surfaces 30 formed in the inner end of the handle boss and on the outer end of the casing automatically return the plunger, when released, into the normal anguar position with the ratchet teeth in alignment with the pawl. Full application of the brakes by the hand lever has the effect when the aircraft is at rest of imposing a restraint on rudder movement.
Patent GB-218130-A (GB)
Title: Improvements in and relating to apparatus for testing the power of engines
IPC: G01L3/16
Filed: 1923-08-01
Abstract: 218,130. Armstrong Siddeley Motors, Ltd., Smith, F. R. and Shilson, B. W. Aug. 1, 1923. Dynamometers, rotary-absorption.-Relates to apparatus of the type in which the power is determined by measuring the reactionary torque on a pivoted bed carrying the engine or the torque necessary to restrain a casing surrounding a fan from rotating with it, and consists in a multiplying lever mechanism for indicating any angular movement of the casing or bed. The bed A has a bracket B, which is supported by ball bearings D on a fixed short hollow shaft C. A spindle G within the shaft and supported by ball bearings E, F at the ends of the shaft carries at one end a pointer H reading against an index mark on the part J. At the other end the spindle carries a small crank G<2>, preferably bent into the ends of the shaft C. The crank pin engages in a slot in one end of the lever L pivoted to the shaft C at M, the other end of the lever being slotted to engage a ball-headed pin N in the bracket B. The angular movement of the bracket is thus converted into a greater angular movement of the pointer H.
Patent GB-647172-A (GB)
Title: Multiple-tuned wave-selector system
IPC: H01P1/205
Filed: 1948-07-23
Abstract: 647,172. High-frequency electric filters. HAZELTINE CORPORATION. July 23, 1948, No. 19770. Convention date, Aug. 13, 1947. [Class 40 (viii)] A tunable filter adapted to be connected in circuit with other components comprises a number of parallel elongated conductors forming closely-spaced transmission line sections exposed to one another over portions having an electrical length substantially different from an integral multiple of a quarter-wavelength in the filter band, tuning means adjusting the lines, and the length of the exposed portions and the coupling to the other components being adjusted to provide a substantially constant band width over the tuning range. In the arrangement shown signals from an aerial 10 are led by a coaxial line 12 to a resonator 20. This contains sleeves 21 and 22 which form a pair of coaxial lines tuned by mechanically connected plungers 23 and 24. The length b forms the exposed portion of the lines coupled together. An output loop 28 and coaxial line 14 lead the filtered signals to receiver 15. In alternative constructions, the tuning means may be variable condensers at the ends of the transmission lines and the latter may be mounted away from the walls of outer container 20 and have no electrical connection therewith. Specification 612,957 is referred to.
Patent GB-435378-A (GB)
Title: Improvements in and relating to latch mechanism for sliding doors
IPC: E05B65/08
Filed: 1935-07-11
Abstract: 435,378. Sliding door fastenings. KAYE & SONS, Ltd., J., and AMBLER, A., Lock Works, Hunslet, Leeds. July 11, 1935, No. 19802. [Class 44] In a fastening for sliding doors such as are used in railway corridors &c., the pivoted hook member B has a bifurcated tail-piece the parts B<1>, B<2> of which are disposed on opposite sides of the space D in which slides the drop window, not shown, and are pivoted individually on aligned pins P. The catch is releasable by independent inside and outside handles H, each operating a follower H<1> engaging the corresponding part B<1> or B<2>. The hook B is biassed to engaging position by a spring B<3> and is adapted to engage a projection S' on an apertured striking-plate S, the projection entering a recess B' provided in the hook casing to avoid excessive projection of the hook from the edge of the door. The handles are biassed to the vertical position by springs H<2>.
Patent GB-197585-A (GB)
Title: Improvements in or relating to tuning pins for stringed musical instruments
IPC: G10D3/14
Filed: 1922-07-20
Abstract: 197,585. Purdy, B. T. July 20, 1922. Stringed instruments, timing-pins for. - A timing-pin for stringed musical instruments comprises a central part d which receives the string, and which for fine tuning is rotatable on a spindle f mounted in the end parts b, c, by means of a worm-wheel g housed in the head a and rotated by a worm h turned by a knurled head j in bearings in the head a. The peg is rotated by the head a for preliminary tuning, in the ordinary way.
Patent GB-772831-A (GB)
Title: Improvements in or relating to preparation of hydroxylamine
IPC: C01B21/14
Filed: 1954-07-07
Abstract: Hydroxylamine is produced by the reduction of aqueous nitric acid, e.g. up to 40 per cent nitric acid with hydrogen in the presence of a catalyst, e.g. platinum or palladium metal or oxide. The catalyst may be supported on an acid insoluble carrier, e.g. activated carbon, alumina, asbestos, silica gel, quartz, heat and chemical resistant glass or kieselguhr.  The carrier may be in powdered or granular form.  An additional acid may also be present, e.g. formic, acetic, phosphoric or sulphuric acid. Methanol may also be present, 0.005-0.05 gm. of palladium per gm. of nitric acid may be employed. Pressures of up to 4,500 p.s.i.g. may be employed.  The reaction is preferably carried out at room or cooling water temperature, but the temperature may rise to 125 DEG C.  The occurrence of side reactions and formation of nitrogen can be reduced by initially evacuating the catalyst and pressurizing it with hydrogen before the addition of the aqueous acid solution.  When sulphuric acid is employed as additional acid the ratio of H2SO4 of HNO3 may be 4-0.5 to 1 and the pressure may be from atmospheric to 500 p.s.i.g.
Patent GB-756511-A (GB)
Title: Improvements in or relating to strychnine and brucine compounds
Filed: 1954-07-07
Abstract: The invention comprises aminoalcohol esters of the N-oxides of strychnic acid and brucinic acid, and acid addition salts of such esters.  These are made from strychnine or brucine by oxidation to the N-oxide with hydrogen peroxide, opening the lactam ring in an alkaline medium and simultaneously or subsequently esterifying, e.g. with an aminoalkyl halide.  Examples show the preparation of strychnine N-oxide, strychnic acid N-oxide sodium salt, strychnic acid N-oxide diethylaminoethyl ester and hydrochloride, strychnic acid N-oxide dimethylaminoethyl ester and hydrochloride and brucinic acid N-oxide diethylamino ester and hydrochloride.
Patent GB-817176-A (GB)
Title: Improvements in or relating to cyclopentanophenanthrene compounds
IPC: C07J75/00
Filed: 1956-06-28
Abstract: The invention comprises the 3,20-di-semicarbazone derivatives of 17a -hydroxy-21-acetoxy - D 1,4 - pregnadiene - 3,11,20 - trione, 11b ,17a ,21 - trihydroxy - D 1,4 - pregnadiene - 3,20-dione and 21-acetate of 11b ,17a ,21-trihydroxy -D 1,4 - pregnadiene - 3,20 - dione, and a process for the preparation of 11b ,17a ,21-trihydroxy - D 1,4 - pregnadiene - 3,20 - dione by reacting 17a -hydroxy - 21 - acetoxy - D 1,4-pregnadiene - 3,11,20 - trione with at least 4 mols., e.g. 4 to 6 mols. of semicarbazide hydrochloride at a temperature not exceeding 50 DEG  C. in an inert organic solvent, e.g. acetic, acid, in the presence of a buffer agent, e.g. disodium phosphate, the resulting 3,20-di-semicarbazone derivative of 17a -hydroxy-21-acetoxy - D 1,4 - pregnadiene - 3,11,20 - trione is reduced with an alkali metal borohydride, e.g. sodium, potassium or lithium borohydride, or lithium aluminium hydride which at the same time saponifies the 21-acetoxy group to form the 3,20 - disemicarbazone of 11b ,17a ,21-trihydroxy - D 1,4 - pregnadiene - 3,20 - dione, the compound is acetylated at the 21-position, e.g. with acetic anhydride in the presence of pyridine, the resulting 3,20-disemicarbazone of 11b ,17a - dihydroxy - 21 - acetoxy - D 1,4 - pregnadiene-3,20-dione is reacted with pyruvic acid to form the 21-acetate of 11b ,17a ,21-trihydroxy - D 1,4 - pregnadiene - 3,20 - dione which is then saponified, e.g. with a solution of potassium hydroxide in methanol. A number of detailed examples are given.  Specifications 773,016 and 816,909 are referred to.
Patent GB-735818-A (GB)
Title: Improvements in or relating to sand and stone intercepting means for beet-washing and conveying troughs
IPC: A23N12/02
Filed: 1953-07-20
Abstract: 735,818. Beet-washing apparatus. BAMMANN, H. July 20, 1953 [July 18, 1952], No. 20073/53. Class 82 (2). A beet-washing trough comprises a sand and stone interceptor, part of the trough 1 being formed with perforated side walls 11 and an open bottom, and arranged in a housing adapted to be filled with water up to the water level in the trough, the housing 20 being substantially wider than the trough. A conduit 7 provides an upward current of air or water to keep the beet floating whilst the sands and stones fall into the funnel 4. A weir 8 may be adjustable to close the bottom of the trough section. The perforated side walls 11 preferably each comprise two mutually slidable walls. An endless bucket conveyer 5 removes the stones.
Patent GB-256055-A (GB)
Title: Pulley or like wheels
IPC: B23D55/06
Filed: 1925-08-11
Abstract: 256,055. Anderson, A. Aug. 11, 1925. Band-saw machines. - Pulley and like wheels, such as those used for driving band-saws, are built up with a rubber rim 18 supported by wooden or metal rings 14, 15, screwed or otherwise attached to the rim and engaging metal web plates 16, 17, which, with a wooden, metal, &c. spacing block 19 are clamped by bolts between fixed and sliding flanges 12, 13 on the hub 10. The block 19 encloses a chamber 21 containing oil, which is fed through holes 22 to the interior of the, hub 10, running freely on a central shaft. Ventilating-holes 24, 25 are provided in the webs 16, 17.
Patent GB-458863-A (GB)
Title: Improvements in or relating to the perforated inner bottom plates of digesters
IPC: D21C7/00
Filed: 1935-07-15
Abstract: 458,863. Digesters. SPENCER, E., 8, Clive Street, and MITCHELL, F. S., Chartered Bank Buildings, both in Calcutta, India. July 15, 1935, No. 20172. [Class 64 (i)] The false bottom of a digester has a number of perforated ridges 4 arranged so as to avoid any tendency to prevent movement of the charge towards the outlet. The ridges radiate from the centre of the digester, and the crests 4b and valleys 5b are inclined towards a central opening 6a ; or the valleys may be horizontal. The opening is provided with a valve 15 of conical form such as that described in Specification 457,891. Liquor from the space 7 below the ridges may be circulated through a space 8 above gratings 9. Specification 322,741, [Class 64 (i)], also is referred to.
Patent GB-1166133-A (GB)
Title: Improved cymbal stand
IPC: G10D13/06
Filed: 1967-05-02
Abstract: 1,166,133. Cymbal stand. MEAZZI S.p.1 2 May, 1967, No. 20172/67. Heading G5J. A cymbal stand comprises a rod 10 with base 11 having articulated feet 12 which are also joined by tie bars 13 to a slidable collar 14 which may be locked on the rod 10, the ends of the feet being fitted with support caps 37 of resilient material and also being provided with articulated tongues 38 provided with spikes. A pedal 23 mounted on a removably articulated frame 22 attached to clamp 21 on base 11 drives the upper cymbal 24 via a tongue 26 and a jointed push-rod 27, which is slidably mounted in the lower cymbal support tube 20 clamped in the block 16 at the top of the rod 10. An adjustable cross member 32 is screwed to the push-rod 27, and carries springs 33, 34 which are fastened to the block 16, and which vary the tension on the pedal. A guide member 35 limits the return travel of the pedal.
Patent GB-386247-A (GB)
Title: Improvements in and relating to the production of cast metal blocks
IPC: B22D27/08
Filed: 1932-07-16
Abstract: 386,247. Casting processes. POLLAK, J. E., 20, Holborn, London.- (Vereinigte Aluminium-Werke Akt.-Ges.; Lautawerk Lausitz, Germany.) July 16, 1932, No. 20239. [Class 83 (i).] To produce a uniformly fine crystal structure in a cast ingot the mould is shaken during solidification, the intensity and frequency of the shaking being gradually reduced, say from 1,120 blows per minute, during solidification. The mould is preferably inverted after pouring.
Patent GB-697507-A (GB)
Title: Improvements in or relating to gas filters
Inventor: SCHAAF OLIVER HASLUP
IPC: B01D46/00
Filed: 1951-08-28
Abstract: 697,507. Separating water from gas. AIR-MAZE CORPORATION. Aug. 28, 1951, No. 20244/51. Class 123 (iii) [Also in Group XXVIII] An apparatus for separating water from gas comprises a panel formed of a plurality of generally parallel contiguous foraminous mesh screens 11, 12, 13 extending in the general direction of gas flow and each having parallel corrugations of generally Z-form also extending in the general direction of gas flow and with the corrugations of one section crossing those of adjacent screens. The length of the middle leg 17 of each corrugation is about twice that of the end legs 16, 18 and is inclined to them at about 120 degrees thus preventing a straight through path from one side of the panel to the other. The screens are held between front and rear flanges 10b of a frame 10 by coarse hardware cloth or expanded metal screens. The screens 11, 12, 13 are coated with oil.
Patent GB-1466721-A (GB)
Title: Devices for controlling the relative quantities of two pastes  issuing from a flexible packaging tube
IPC: B65D35/24
Filed: 1974-05-08
Abstract: 1466721 Collapsible tubes; regulating discharge CLIN-MIDY 8 May 1974 [8 May 1973] 20276/74 Heading B8D and B8T A device for controlling the relative proportions of two pastes dispersed from a flexible tube (not shown), comprises a first member 2 fixedly screwed to the neck of the tube and having a tubular portion 1 extending into the tube to provide a central outlet passage for a first paste and an annular compartment for a second paste, and a second member 11 adjustably threaded on to the first member and having a collar 14, which is located between concentric cylindrical walls 9 and 10 of the first member and has an end 17 co-operating with a shoulder 18 on the wall 10 to adjustably regulate the second paste output on unscrewing of the second member. The shoulder may be of convex, concave, or conical form. The outer side of the collar is always in contact with the inner surface of the wall 9, and the collar end, in its closed down position, seats on the bottom of the channel defined between the walls 9 and 10 to close openings 8. An index stop 20 is provided on the first member and co-operates with the second member to limit rotation thereof. A closure cap 7 is provided. Fig. 2 shows a known construction.
Patent GB-1529132-A (GB)
Title: Method of determining the base period of a speech signal from the difference signal arising with prediction vocoder
IPC: G10L25/90
Filed: 1977-05-13
Abstract: 1529132 Pitch period detectors LICENTIA PATENT VERWALTUNGS GmbH 13 May 1977 [15 May 1976] 20289/77 Heading H4R The pitch period of speech is determined from a signal d representing the difference between the speech and the output of a predictor, by combining (correlating) at M the difference signal (stored in SR2) with a sample (stored in SRI) and detecting at S when the combination exceeds a threshold, thereby producing a pulse output t i  representing its time of occurrence. The output causes a new sample to be read into SR1.
Patent GB-424934-A (GB)
Title: Apparatus for treating textile fabrics
IPC: D06C3/00
Filed: 1934-07-12
Abstract: 424,934. Shrinking and stretching fabrics. PAYET, J., 25, Carlton Terrace, Rutherford, New Jersey, U.S.A. July 12, 1934, No. 20516. Convention date, July 20, 1933. [Class 42 (i)] A fabric to be stretched or shrunk is passed from one pair of endless moving edge-gripping means C to a second pair of endless edge-gripping means L running faster or slower than the means C. The fabric is transferred from one means C to the other L by upper and lower bands Q or other devices travelling at approximately the speed of the faster of the two means C, L.
Patent GB-1378017-A (GB)
Title: Equipment for animal husbandry
IPC: E04H5/08
Filed: 1972-05-03
Abstract: 1378017 Housing for animals W FEILHAUER 3 May 1972 [4 May 1971] 20619/72 Heading AIM Housing for farm animals comprises one or more cell units 1 contained within a permanent structure 2, e.g. a barn, to enable the animal conditions to be optimised. The cells have insulating walls 7a, b and floors 4 supported by anchored posts 3 forming an underfloor space for the accomodation of sanitary, air conditioning, and temperature control installations. Each cell has a door 8 and interconnectable end portions, and is divided in two by a wall 9 carrying an inspection path 10. Animal effluent is removed via gutters 5a, 5b covered by slatted floors, and fresh air is introduced via a duct 18, these being common to cells connected in series. The floor 4 is heated by a hot air blower or cooled by air from a branch of the ventilation duct. Feeding troughs are provided along the end walls or alternatively automatic feeders are arranged on the central wall 9. In a modification the cells are divided by a middle path, and separate areas of the floor are maintained at different temperatures by the use of floor insulation and infra-red heaters.